Open invitation to tender, deadline 21/04/2021, for technical assistance for the supervision of the contract for the upgrading of the of the centralized management system of the tunnels of the M-30 ring road in Madrid. Value of the contract is EUR1.30 million, excluding VAT. Duration of the contract is 36 months. Contact Madrid Calle 30 SA, Madrid, tel +34 915391236, fax +34 915309588, email madridcalle30juridic@mc30.es. For further information on the tender, please click here and here. Ref.n. 202100002. 09/21.
